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Fixed #25390 -- Allowed specifying a start migration in squashmigrations

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Thanks Tim Graham for the review.
This commit is contained in:
Markus Holtermann 2015-09-12 17:18:24 +10:00
parent 5aa55038ca
commit 43f2eb7ef3
5 changed files with 88 additions and 18 deletions
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31
tests/migrations/test_commands.py
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@ -1070,3 +1070,34 @@ class SquashMigrationsTests(MigrationTestBase):
call_command("squashmigrations", "migrations", "0002",
interactive=False, verbosity=1, no_optimize=True, stdout=out)
self.assertIn("Skipping optimization", force_text(out.getvalue()))
def test_squashmigrations_valid_start(self):
"""
squashmigrations accepts a starting migration.
"""
out = six.StringIO()
with self.temporary_migration_module(module="migrations.test_migrations_no_changes") as migration_dir:
call_command("squashmigrations", "migrations", "0002", "0003",
interactive=False, verbosity=1, stdout=out)
squashed_migration_file = os.path.join(migration_dir, "0002_second_squashed_0003_third.py")
with codecs.open(squashed_migration_file, "r", encoding="utf-8") as fp:
content = fp.read()
self.assertIn(" ('migrations', '0001_initial')", content)
self.assertNotIn("initial = True", content)
out = force_text(out.getvalue())
self.assertNotIn(" - 0001_initial", out)
self.assertIn(" - 0002_second", out)
self.assertIn(" - 0003_third", out)
def test_squashmigrations_invalid_start(self):
"""
squashmigrations doesn't accept a starting migration after the ending migration.
"""
with self.temporary_migration_module(module="migrations.test_migrations_no_changes"):
msg = (
"The migration 'migrations.0003_third' cannot be found. Maybe "
"it comes after the migration 'migrations.0002_second'"
)
with self.assertRaisesMessage(CommandError, msg):
call_command("squashmigrations", "migrations", "0003", "0002", interactive=False, verbosity=0)